This paper presents results of measurements of the levels of sodium and lead in plants and soil on the central reserve and on the verges of roads in the United Kingdom. The greatest part of the paper examines experimental investigations into the effects of increased wind in the form of gusts from passing vehicles on the growth of tall fescue (festuca arundinacea), a species of grass widely used for planting roadside verges in the USA. The experiment, carried out in a controlled environment wind tunnel, showed mechanical damage to leaves through exposure to wind. Leaf contacts and fluttering occurred frequently resulting in considerable abrasion of the leaf surfaces, rupture of surface cells, and extensive abrasion of the cuticle. Even when no contact could have occurred, waxes appeared deformed because of rapid leaf flexing. /TRRL/

  • Supplemental Notes:
    • This report was presented at the symposium on The Next Decade in Amenity Grassland, held at Queen's University, Belfast, Northern Ireland, 1976.
  • Corporate Authors:

    Queen's University Belfast

    Institute of Biology, University Road
    Belfast,   Ireland  BT7 1NN
  • Authors:
    • Thompson, J R
  • Publication Date: 0

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 66-79

Subject/Index Terms

Filing Info

  • Accession Number: 00179937
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Monograph
  • Files: ITRD, TRIS
  • Created Date: Sep 27 1978 12:00AM